MOBILE COMPUTING

2010 Jawaharlal Nehru Technological University, Hyderabad M.C.A JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD MCA-IV Semester Regular Examinations July/August 2010 MOBILE COMPUTING Question paper
Code No: 48
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA-IV Semester Regular Examinations July/August 2010
MOBILE COMPUTING
Time: 3hours Max.Marks:60
Answer any Five questions
All questions carry equal Marks
- - -
1. Describe about the protocols of GSM?
2.a) Explain in detail about carrier sense multiple access(CSMA)
b) Explain in detail about demand assigned multiple access(DAMA) with a neat
sketch?
3.a) Explain about registration reply header.
b) Describe the messages that are used in optimized mobile IP protocol.
4.a) Explain in detail about selective retransmission technique in TCP?
b) Explain in detail Transaction oriented TCP?
5.a) Explain about caching invalidation mechanisms?
b) Describe the types of contexts in context aware computing?
6.a) Distinguish between Push –based mechanism and pull based mechanism of data
dissemination?
b) Explain the classification of data delivery mechanism?
7. How does dynamic source routing handles the routing? What is the motivation
behind dynamic source routing compared to other routing algorithms from fixed
networks?
8. Explain the protocol stack of Bluetooth? Explain the core protocol element of
Bluetooth?
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